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simplify RecursiveResolveTypes and ResolveTypes by pulling the naming out of
ResolveTypes into the one place that needs it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52338 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
parent
e846db6675
commit
371ca83d8b
@ -52,7 +52,6 @@ static std::string ToStr(const Type *Ty, const Module *M) {
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// Inputs:
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// DestTy - The type to which we wish to resolve.
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// SrcTy - The original type which we want to resolve.
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// Name - The name of the type.
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//
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// Outputs:
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// DestST - The symbol table in which the new type should be placed.
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@ -62,7 +61,7 @@ static std::string ToStr(const Type *Ty, const Module *M) {
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// false - No errors.
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//
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static bool ResolveTypes(const Type *DestTy, const Type *SrcTy,
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TypeSymbolTable *DestST, const std::string &Name) {
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TypeSymbolTable *DestST) {
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if (DestTy == SrcTy) return false; // If already equal, noop
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// Does the type already exist in the module?
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@ -76,8 +75,6 @@ static bool ResolveTypes(const Type *DestTy, const Type *SrcTy,
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if (DestTy) // Type _is_ in module, just opaque...
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const_cast<OpaqueType*>(cast<OpaqueType>(DestTy))
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->refineAbstractTypeTo(SrcTy);
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else if (!Name.empty())
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DestST->insert(Name, const_cast<Type*>(SrcTy));
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}
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return false;
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}
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@ -94,8 +91,7 @@ static const StructType *getST(const PATypeHolder &TH) {
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// are compatible.
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static bool RecursiveResolveTypesI(const PATypeHolder &DestTy,
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const PATypeHolder &SrcTy,
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TypeSymbolTable *DestST,
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const std::string &Name,
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TypeSymbolTable *DestST,
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std::vector<std::pair<PATypeHolder, PATypeHolder> > &Pointers) {
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const Type *SrcTyT = SrcTy.get();
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const Type *DestTyT = DestTy.get();
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@ -103,7 +99,7 @@ static bool RecursiveResolveTypesI(const PATypeHolder &DestTy,
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// If we found our opaque type, resolve it now!
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if (isa<OpaqueType>(DestTyT) || isa<OpaqueType>(SrcTyT))
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return ResolveTypes(DestTyT, SrcTyT, DestST, Name);
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return ResolveTypes(DestTyT, SrcTyT, DestST);
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// Two types cannot be resolved together if they are of different primitive
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// type. For example, we cannot resolve an int to a float.
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@ -125,7 +121,7 @@ static bool RecursiveResolveTypesI(const PATypeHolder &DestTy,
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return true;
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for (unsigned i = 0, e = getFT(DestTy)->getNumContainedTypes(); i != e; ++i)
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if (RecursiveResolveTypesI(getFT(DestTy)->getContainedType(i),
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getFT(SrcTy)->getContainedType(i), DestST, "",
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getFT(SrcTy)->getContainedType(i), DestST,
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Pointers))
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return true;
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return false;
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@ -135,7 +131,7 @@ static bool RecursiveResolveTypesI(const PATypeHolder &DestTy,
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getST(SrcTy)->getNumContainedTypes()) return 1;
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for (unsigned i = 0, e = getST(DestTy)->getNumContainedTypes(); i != e; ++i)
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if (RecursiveResolveTypesI(getST(DestTy)->getContainedType(i),
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getST(SrcTy)->getContainedType(i), DestST, "",
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getST(SrcTy)->getContainedType(i), DestST,
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Pointers))
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return true;
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return false;
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@ -145,7 +141,7 @@ static bool RecursiveResolveTypesI(const PATypeHolder &DestTy,
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const ArrayType *SAT = cast<ArrayType>(SrcTy.get());
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if (DAT->getNumElements() != SAT->getNumElements()) return true;
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return RecursiveResolveTypesI(DAT->getElementType(), SAT->getElementType(),
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DestST, "", Pointers);
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DestST, Pointers);
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}
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case Type::PointerTyID: {
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// If this is a pointer type, check to see if we have already seen it. If
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@ -162,7 +158,7 @@ static bool RecursiveResolveTypesI(const PATypeHolder &DestTy,
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bool Result =
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RecursiveResolveTypesI(cast<PointerType>(DestTy.get())->getElementType(),
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cast<PointerType>(SrcTy.get())->getElementType(),
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DestST, "", Pointers);
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DestST, Pointers);
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Pointers.pop_back();
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return Result;
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}
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@ -172,10 +168,9 @@ static bool RecursiveResolveTypesI(const PATypeHolder &DestTy,
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static bool RecursiveResolveTypes(const PATypeHolder &DestTy,
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const PATypeHolder &SrcTy,
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TypeSymbolTable *DestST,
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const std::string &Name){
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TypeSymbolTable *DestST){
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std::vector<std::pair<PATypeHolder, PATypeHolder> > PointerTypes;
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return RecursiveResolveTypesI(DestTy, SrcTy, DestST, Name, PointerTypes);
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return RecursiveResolveTypesI(DestTy, SrcTy, DestST, PointerTypes);
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}
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@ -203,7 +198,9 @@ static bool LinkTypes(Module *Dest, const Module *Src, std::string *Err) {
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// Check to see if this type name is already in the dest module...
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Type *Entry = DestST->lookup(Name);
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if (ResolveTypes(Entry, RHS, DestST, Name)) {
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if (Entry == 0 && !Name.empty())
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DestST->insert(Name, const_cast<Type*>(RHS));
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else if (ResolveTypes(Entry, RHS, DestST)) {
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// They look different, save the types 'till later to resolve.
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DelayedTypesToResolve.push_back(Name);
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}
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@ -219,7 +216,7 @@ static bool LinkTypes(Module *Dest, const Module *Src, std::string *Err) {
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const std::string &Name = DelayedTypesToResolve[i];
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Type *T1 = SrcST->lookup(Name);
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Type *T2 = DestST->lookup(Name);
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if (!ResolveTypes(T2, T1, DestST, Name)) {
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if (!ResolveTypes(T2, T1, DestST)) {
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// We are making progress!
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DelayedTypesToResolve.erase(DelayedTypesToResolve.begin()+i);
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--i;
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@ -235,7 +232,7 @@ static bool LinkTypes(Module *Dest, const Module *Src, std::string *Err) {
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PATypeHolder T1(SrcST->lookup(Name));
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PATypeHolder T2(DestST->lookup(Name));
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if (!RecursiveResolveTypes(T2, T1, DestST, Name)) {
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if (!RecursiveResolveTypes(T2, T1, DestST)) {
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// We are making progress!
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DelayedTypesToResolve.erase(DelayedTypesToResolve.begin()+i);
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@ -463,7 +460,7 @@ static bool LinkGlobals(Module *Dest, const Module *Src,
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if (DGV && DGV->getType() != SGV->getType())
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// If types don't agree due to opaque types, try to resolve them.
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RecursiveResolveTypes(SGV->getType(), DGV->getType(),
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&Dest->getTypeSymbolTable(), "");
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&Dest->getTypeSymbolTable());
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}
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// Check to see if may have to link the global with the alias
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@ -472,7 +469,7 @@ static bool LinkGlobals(Module *Dest, const Module *Src,
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if (DGV && DGV->getType() != SGV->getType())
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// If types don't agree due to opaque types, try to resolve them.
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RecursiveResolveTypes(SGV->getType(), DGV->getType(),
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&Dest->getTypeSymbolTable(), "");
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&Dest->getTypeSymbolTable());
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}
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if (DGV && DGV->hasInternalLinkage())
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@ -633,7 +630,7 @@ static bool LinkAlias(Module *Dest, const Module *Src,
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// If types don't agree due to opaque types, try to resolve them.
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if (DGV && DGV->getType() != SGA->getType())
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if (RecursiveResolveTypes(SGA->getType(), DGV->getType(),
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&Dest->getTypeSymbolTable(), ""))
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&Dest->getTypeSymbolTable()))
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return Error(Err, "Alias Collision on '" + SGA->getName()+
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"': aliases have different types");
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}
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@ -644,7 +641,7 @@ static bool LinkAlias(Module *Dest, const Module *Src,
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// If types don't agree due to opaque types, try to resolve them.
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if (DGV && DGV->getType() != SGA->getType())
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if (RecursiveResolveTypes(SGA->getType(), DGV->getType(),
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&Dest->getTypeSymbolTable(), ""))
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&Dest->getTypeSymbolTable()))
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return Error(Err, "Alias Collision on '" + SGA->getName()+
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"': aliases have different types");
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}
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@ -655,7 +652,7 @@ static bool LinkAlias(Module *Dest, const Module *Src,
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// If types don't agree due to opaque types, try to resolve them.
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if (DGV && DGV->getType() != SGA->getType())
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if (RecursiveResolveTypes(SGA->getType(), DGV->getType(),
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&Dest->getTypeSymbolTable(), ""))
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&Dest->getTypeSymbolTable()))
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return Error(Err, "Alias Collision on '" + SGA->getName()+
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"': aliases have different types");
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}
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@ -854,7 +851,7 @@ static bool LinkFunctionProtos(Module *Dest, const Module *Src,
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// If types don't agree because of opaque, try to resolve them.
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if (SF->getType() != DF->getType())
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RecursiveResolveTypes(SF->getType(), DF->getType(),
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&Dest->getTypeSymbolTable(), "");
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&Dest->getTypeSymbolTable());
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// Check visibility, merging if a definition overrides a prototype.
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if (SF->getVisibility() != DF->getVisibility()) {
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